I asked about him and it was said to me that al-Mutawakkil...
I asked about him and it was said to me that al-Mutawakkil had prevented him from going out and that he kept to his house. I feared to visit him and refrained from asking about him. It came to my mind that I would ride on my stumper and go to the town so that I might find out more about him without asking conspicuously. Walking in the streets and markets, I reached a house when it struck me that it might be the house of Imam al-Hadi (a.s.). I asked my servant to see whose house it was.
The servant asked and it was said to him that it was the house of the son of ar-Ridha. My servant knocked the door and a black servant came out towards me and said, ‘Are you Yusuf bin Ya’qub?’ ‘Yes!’ I replied. He said, ‘Dismount!’ I dismounted from my sumpter and he took me into a vestibule. He went in and then came out asking me, ‘Where are the one hundred dinars?’ I gave them to him and he took them to the Imam. After a while, he came and permitted me to come in. I came in.
Imam al-Hadi (a.s.) was alone. He looked at me kindly and compassionately and said, ‘Is it not yet enough for you? (He meant, has he not seen enough to be guided).’ I said, ‘O my master, a sufficient proof has appeared to me!’ Imam al-Hadi (a.s.) said, ‘How far! You will not be Muslim, but your son will, and he will be from our Shia. O Yusuf, there are some people claiming that our guardianship does not benefit ones like you. Go to what you have come to!
You shall see what you like.’ Yusuf was astonished at the miracle he saw from Imam al-Hadi (a.s.). He went to al-Mutawakkil and got all that he wanted. Hibatullah said, ‘Yusuf died and I met his son who was a good Muslim following the Ahlul Bayt (a.s.). He told me that his father was still Christian when he died, and that he (the son) became a Muslim after the death of his father.
He often said, ‘I am the good tiding of my master’.(3) The people of the Book believed in Imam al-Hadi (a.s.) and found in his life a continuity to the lives of prophets and saints. What authors say about him All those, who wrote about the life of Imam al-Hadi (a.s.), saw honor, dignity, knowledge, piety, and charisma in his great personality and showed their admiration and high regard for him. Here are some sayings of historians and scholars about him: 1.
Abul Falah al-Hanbali: Abdul Hayy Abul Falah al-Hanbali says, ‘Abul Hasan bin Ali al-Jawad bin Rezabin Musa al-Kadhim bin Ja’far as-Sadiq al-Alawi al-Husayni, who is known as al-Hadi, was a jurisprudent, worshipping Imam.